Technology

Scientists in India have used a pouch laminator to encapsulate a polycrystalline solar cell. The resulting device, the researchers claim, showed better UV photon absorption than solar cells treated with a polymer surface coating.

U.S. thinktank the Institute for Energy Economics and Financial Analysis says the nation should reorder its power network to harness cheap, modular renewables after existing power station overcapacity was worsened by plunging electricity demand during the Covid-19 shutdown.

Scientists in Japan have proposed a new model to estimate cell voltages in solar modules by irradiating the cells with a weak modulated laser light. The method could be used to detect hot spots and other panel-degradation issues, such as potential induced degradation (PID) peeling, cracking, and poor contacts.

The Chinese manufacturer has not revealed the price of its new ‘ultra-high power’ products, nor whether the power output claims associated with them have been independently verified, but claimed the 78-piece module in the series could generate ‘very close to 600 W.’

MIT scientists have suggested used electric vehicle batteries could offer a more viable business case than purpose-built systems for the storage of grid scale solar power in California. Such ‘second life’ EV batteries, may cost only 60% of their original purchase price to deploy and can be effectively aggregated for industrial scale storage even if they have declined to 80% of their original capacity.

Backsheet manufacturer Tomark-Worthen LLC has developed a new polyamide backsheet under the U.S. Department of Energy’s Sunshot initiative. The product is based on a novel polyamide-ionomer alloy created by U.S. chemicals producer Dow. The alloy, as well as the other materials in the backsheet, are stabilized with a UV/anti-oxidant package that slows down the damaging effects of ultraviolet radiation. The manufacturer claims that the backsheet is 25-30% more affordable than high-efficiency fluoropolymer products.

Researchers in Singapore have created a device that can produce electricity from the contrast in illumination between lit and shadowed areas under weak ambient light. Although not directly related to solar, this new technology opens up new horizons for producing clean energy under indoor lighting conditions.

In a world-first, perovskite solar cells developed by Australian scientists have passed a series of heat and humidity tests using a low-cost solution to overcome some of the challenges that are hindering the technology’s commercialization. The scientists did this by suppressing the decomposition of the perovskite cells using a simple, low-cost polymer-glass blanket.

The municipality of Drammen, Norway, has started testing a seasonal PV storage project that uses boreholes in the ground. The operators of the project are using electricity from PV modules to produce heat via a CO2 heat pump and outdoor air. The heat is produced by the CO2 pump during the spring, summer and fall, in addition to heat produced by solar thermal collectors.

Scientists in the United States have created a quantum dot solar cell which has a photon-to-electron conversion efficiency of 85%. The device is also said to exhibit remarkable defect tolerance and toxic-element-free composition.